L6562N集成電路（IC）的PFC（功率因數(shù)校正）規(guī)格書(shū)PDF中文資料

L6562N屬于集成電路（IC）的PFC（功率因數(shù)校正）。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的L6562NPFC（功率因數(shù)校正）功率因數(shù)校正 (PFC) 是用于調(diào)整交流電路中的電壓和電流之間的相位角，使之趨近于零的半導(dǎo)體器件。不同模式包括平均電流、邊界導(dǎo)通、連續(xù)導(dǎo)通、臨界導(dǎo)通、電流控制式頻率折返、不連續(xù)和不連續(xù)導(dǎo)通，開(kāi)關(guān)頻率從 6 kHz 至 1.7 MHz 可調(diào)。

Description

The L6562 is a current-mode PFC controller operating in Transition Mode (TM). Pin-to-pin compatible with the predecessor L6561, it offers improved performance.

The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range.

The output voltage is controlled by means of a voltage-mode error amplifier and a precise (1 @Tj = 25°C) internal voltage reference.

The device features extremely low consumption (≤70 μA before start-up and <4 mA running) and includes a disable function suitable for IC remote ON/OFF, which makes it easier to comply with energy saving norms (Blue Angel, EnergyStar, Energy2000, etc.).

An effective two-step OVP enables to safely handle overvoltages either occurring at start-up or resulting from load disconnection.

The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable for big MOSFET or IGBT drive which, combined with the other features, makes the device an excellent low-cost solution for EN61000-3-2 compliant SMPSs up to 300W.

Features

■ REALISED IN BCD TECHNOLOGY

■ TRANSITION-MODE CONTROL OF PFC PREREGULATORS

■ PROPRIETARY MULTIPLIER DESIGN FOR MINIMUM THD OF AC INPUT CURRENT

■ VERY PRECISE ADJUSTABLE OUTPUT OVERVOLTAGE PROTECTION

■ ULTRA-LOW (≤70μA) START-UP CURRENT

■ LOW (≤4 mA) QUIESCENT CURRENT

■ EXTENDED IC SUPPLY VOLTAGE RANGE

■ ON-CHIP FILTER ON CURRENT SENSE

■ DISABLE FUNCTION

■ 1 (@ Tj = 25 °C) INTERNAL REFERENCE VOLTAGE

■ -600/+800mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN AND VOLTAGE CLAMP

■ DIP-8/SO-8 PACKAGES ECOPACK?

APPLICATIONS

■ PFC PRE-REGULATORS FOR:

– IEC61000-3-2 COMPLIANT SMPS (TV, DESKTOP PC, MONITOR) UP TO 300W

– HI-END AC-DC ADAPTER/CHARGER

– ENTRY LEVEL SERVER & WEB SERVER